SOURCE: 1997 ford f250 7.3 liter power stroke dielse dieing!
check fuel pressure at regulator, should be 40-50psi, could be mechanical fuel pump. go to ford and/or international truck service dealer, they have fuel pressure tester.
my 97 F250 acted same way, would white smoke on highway, was mechanical fuel pump not providing enough fuel to injectors.
SOURCE: 2002 Taurus 24v OHC
Check engine light is frequently a loose fuel cap, but the other problem could be a bad fuel pump, or a clogged fuel filter. Try the fuel filter first - its the cheapest.
SOURCE: 1995 Ford Probe sputtering, dying. Won't start now.
to make sure the fuel pump is operating get in a quite place get in vehicle and turn ignition switch on position you should hear alittle buzz for about 2 seconds try this several times if no buzz is heard then the fuel pump is not running. check fuel pump relay in power box by switching relay with one of same type thare should be one of same type in the box if not then purchase one and try it. If the pump is ok then you know you have a firing problem. check to see if you have spark by taking one of the spark plugs out then hook spark plug wire to it lay it on engine and look for spark while someone turns the ignition switch as if trying to start car
SOURCE: Whole truck sputters shakes when going up a hill
on our 1997 it was a misfire and one of the ignition coils needed replaced.
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